.adv{
    width: 100%;
    min-width:320px;
    max-width: 768px;
    height: 10.6667vw;
    position: fixed;
    top: 3.75rem;
    left: 0;
    z-index: 80;
}
.adv-box{
    width: 100%;
    height: 10.6667vw;
    min-width:320px;
    max-width: 768px;
}
.adv img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.nav-content{
    position: fixed;
    top: calc(10.6667vw + 3.75rem);
    left: 0;
    background-color: #fff;
    width: 100%;
    min-width:320px;
    max-width: 768px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}
.nav-content-box{
    width: 100%;
    height: 10.6667vw;
    min-width:320px;
    max-width: 768px;
}
.nav-content-ul{
    display: flex;
    justify-content: space-around;
    gap: 4vw;
}
.nav-content-ul-li a{
    display: inline-block;
    padding: 2.6667vw 0;
    font-size: .9375rem;
    color: #a4a4a4;
}
.nav-content-ul-li:nth-child(1) a{
    color: #089fee;
    border-bottom: 3px solid #089fee;
}
.comments{
    width: 100%;
    min-width:320px;
    max-width: 768px;
}
.comments-heart{
    width: 100%;
    min-width:320px;
    max-width: 768px;
}
.comments-heart-ul{
    display: grid;
    box-sizing: border-box;
    padding:  2.6667vw 0;
    box-sizing: border-box;
}
.comments-heart-ul-li{
    background-color: #fff;
    padding: 2.6667vw 2vw;
    display: flex;
    flex-direction: column;
    gap: 2.6667vw;
    margin-bottom: 1.3333vw;
    box-sizing: border-box;
    border-radius: 1.3333vw;
}
.chul-title a img{
    width: 1.875rem;
    height: 1.875rem;
    border-radius: 50%;
}
.chul-title span{
    font-size: .75rem;
}
.chul-middle img{
     width: 100%;
     height: 100%;
     object-fit: cover;
     border-radius: 1.3333vw;
}
.chul-bottom{
    padding: 2.6667vw 2.6667vw;
    box-sizing: border-box;
    background-color: #f7f7f7;
    border-radius: 1.3333vw;
}
.teacher{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.teacher-people{
    display: flex;
    gap: 1.3333vw;
    align-items: center;
}
.teacher a img:nth-of-type(1){
    width: 1.875rem;
    height: 1.875rem;
    border-radius: 50%;
}
.teacher-people img{
    width: 13.3333vw;
}
.teacher a  span,.teacher a .icon-bofang{
    font-size: .875rem;
}
.opinion p{
    font-size: .9375rem;
    line-height: 1.5;
    color: #5b6164;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.opinion a{
    font-size: .9375rem;
    color: #089fee;
}
.small-mask-heart-ul-li:last-child a{
    color: #089fee;
}
.app{
    position: fixed;
    bottom: calc(3.75rem + 1.5rem);
    left: 50%;
    margin-left:-3.925rem;
}
.app a{
    padding: .6875rem 1rem;
    background-color: #089fee;
    color: #fff;
    font-size: .875rem;
    border-radius: 1.25rem;
}